Ludwig C8200 Extended Collar Timpani Head White 32 in. Weather Master Extended Collar Timpani Heads: All Ludwig heads feature Ludwig's exclusive HeadlockTM system, designed for "no pull out" tensioning Made from the finest quality Mylar film and manufactured in the USA, Ludwig heads are as famous as their drums Extended Collar heads will fit all Ludwig drums made after 1978, and some professional models manufactured prior to 1978 Regular Collar heads will fit the Standard, Universal, and Machine Series timpani made prior to 1978 Please contact us for help in choosing the correct head size for your timpani